In RFC and RFCEurope the Vikings have always been my favourite civilization. I find it incredibly exciting to invade England and set sail to the New World. So first off, I'd like to thank you for continuing the development of the mod!
I wanted to suggest some changes for Norway, Denmark and the Viking Points.
I'll start with the Viking Points which would be available for both nations and could give bonuses just like the faith points.
For example: 100 Points - 1 Happiness in your core cities,
150 Points - diplomatic boost with the other Viking civ (like +2),
200 Points - two Berserkers appear in your capital,
300 Points - no upkeep for 5 units,
500 Points - free Golden Age.
The bonuses are permanent once you unlock them but Viking Points would decrease when you're not able to accumulate some at least 3 in 10 turns.
Prerequisites for acquiring Viking Points are the civics Militarism and Paganism.
Additionally to the already existing possibilities to get Viking Points, buildings would give points when built or captured: Pagan Shrine - 5 Points,
Trading Post - 15 Points,
Shrine of Uppsala - 50 Points,
Vinland - 50 Points.
What do you think about preplacing the Shrine of Uppsala in Uppsala or placing a minable Amber in Uppsala? That would make the conquest of Uppsala more desirable.
The Norvegian civ feels really complete. Imo, there's no need to change its unique features. Denmark feels unfinished to me, though. The UHV and UU are good, but the UB comes very late (I guess you picked it because of Tycho Brahe?) and the UP is a good idea, but it's a bit odd when every turn you just get a text of how many gold you got.
My suggestion for the UB is to give the Danish the Trading Post! Imo Norway doesn't need it. In the early game, it's just a waste of hammers (especially if you're in Manorialism). Also, Norvegian ships are already incredibly fast because they get the double movement on Ocean tiles. In addition, the Trading Post gould give a promotion that allows ships to enter Ocean tiles instead of Navigation 1. Thus, Denmark could settle Iceland.
What building would the Norvegian get in compensation? Maybe a barracks which gives the City Raider 1 promotion. But I'm more interested in the
Stave church, which would replace the Catholic Church. It could give +1 more
and more importantly 15 Viking Points even if you are not in Paganism. This could encourage the historic christianisation of the Vikings.
Similar to that is my suggestion of the Danish UHV: It would give access to Viking Points even when you are not in Paganism.
(Reflection: This would make the prerequisite of Paganism for Viking Points a bit awkward when there are two exceptions to this already.)
Ah, the first condition for the Norvegian UHV should be increased to 200 at 1066 of course.
Okay, that's it, I guess. Of all suggestions it would make me happiest if you'd consider the swap of the Unique Buildings. I'm sure there is an existing model of a Stave Church on this forum. I can look for it, if you want.